Hard Mathematics Chapter 1: Real Numbers Class 10 Level 10

तीन संख्याओं के अभाज्य गुणनखंड \(2^4\times3\times5^2\), \(2^2\times3^3\times5\) और \(2^3\times3^2\times7\) हैं। इनका लघुत्तम समापवर्त्य क्या होगा?

The prime factorisations of three numbers are \(2^4\times3\times5^2\), \(2^2\times3^3\times5\), and \(2^3\times3^2\times7\). What is their LCM?

Explanation opens after your attempt
Correct Answer

A. \(2^4\times3^3\times5^2\times7\)

Step 1

Concept

For LCM, take the highest power of every prime factor present.

Step 2

Why this answer is correct

The highest powers are \(2^4\), \(3^3\), \(5^2\), and (7).

Step 3

Exam Tip

Do not miss a prime factor that appears in only one number. चरण 1: लघुत्तम समापवर्त्य में सभी अभाज्य गुणनखंडों की सबसे बड़ी घात ली जाती है। चरण 2: सबसे बड़ी घातें \(2^4\), \(3^3\), \(5^2\) और (7) हैं। चरण 3: किसी भी अभाज्य गुणनखंड को छोड़ना सबसे सामान्य गलती होती है।

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What is the correct answer to this Mathematics MCQ?

The correct answer is A. \(2^4\times3^3\times5^2\times7\).

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